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Finding the Third Proportional to 543,928 and 764,618

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Solution

The third proportional to 543,928 and 764,618 is: 1,074,849.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,928 : 764,618 = 764,618 : x
  2. Step 2: Convert to fraction form
    543,928/764,618 = 764,618/x
  3. Step 3: Cross multiply
    543,928x = 764,618 × 764,618
  4. Step 4: Simplify right side
    543,928x = 584,640,685,924
  5. Step 5: Solve for x
    x = 584,640,685,924/543,928
  6. Step 6: Final answer
    x = 1,074,849.40

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.